Docking Pane - Refresh of docking pane with WPF on Vista Aero

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Refresh of docking pane with WPF on Vista Aero

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URL: http://forum.codejock.com/forum_posts.asp?TID=12127
Printed Date: 29 May 2024 at 1:48am
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Topic: Refresh of docking pane with WPF on Vista Aero

Posted By: danghel
Subject: Refresh of docking pane with WPF on Vista Aero
Date Posted: 10 September 2008 at 10:25am

Hello all,

I have a refresh/paint problem on Vista with a docking pane containing a WPF UserControl:

Our MFC application uses a docking pane which contains a CDialog that is a host for a WPF UserControl. After the docking pane becomes visible, if the WPF UserControl inside the docking pane is clicked, the entire content of the docking pane is wiped out and only a blank interior is displayed.

Then, if the mouse cursor is hovered over the WPF UserControl, it starts to redraw itself on the hovered areas only. A resize/move operation on the docking pane completely refreshes the WPF UserControl, and everything works fine until the docking pane changes the visibility again to invisible then to visible, and the problem reappears.

This problem is present only under the Vista OS and only when the docking pane is floating.

Also, if the Vista display theme is changed to �Windows classic�, the refresh works just fine (which indicates that the problem is directly related to Aero Desktop Window Manager).

Do you have any suggestion on why this is happening and what should I do to patch this problem?

Thank you,

Daniel

Replies:

Posted By: Oleg
Date Posted: 11 September 2008 at 2:17am

Hello,

Please attach sample application.

-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS

Posted By: danghel
Date Posted: 11 September 2008 at 1:59pm

Hi Oleg,

I attached a sample application (SampleApp) with a CXTPMDIFrameWnd main form which contains a docking pane that has attached a CDialog (HostDlg). This dialog hosts a WPF UserControl (see UserControl1 in WpfControlLibrary2 namespace).

When executing SampleApp.exe, the main form and the docking pane are displayed. If you click anywhere on the WPF content of the docking pane, the whole content of docking pane will become white and the only way of repainting the WPF control is to resize the docking pane.

The WPF user control source code is included in the solution WpfControlLibrary2. I should mention that no matter the design of this user control, the behavior is the same, so I assume the problem is not related to a specific WPF control.

Please note that in XP or Vista with classic theme everything works fine.

In order to compile and execute you'll have to add the toolkit DLL (ToolkitPro1201vc90D.dll) to the Debug folder and the toolkit LIB (ToolkitPro1201vc90D.lib) directly to the SampleApp (I had to remove these files from the attached archive due to file size limitation)

Thank you,

Daniel

uploads/20080911_135711_SampleApp.part1.rar - 20080911_135711_SampleApp.part1.rar

uploads/20080911_135810_SampleApp.part2.rar - 20080911_135810_SampleApp.part2.rar

Posted By: danghel
Date Posted: 30 September 2008 at 2:13pm

Hi Oleg,

Did you have a chance to take a look at the code example? We would like to renew our yearly subscription for Toolkit updates but we are waiting to see if there is a solution for this annoying refresh problem under Vista first.

Thank you,

Daniel